[PATCH v7 07/16] KVM: arm64: Repurpose vcpu_arch.debug_flags for general-purpose flags

[Christoffer Dall]

On Wed, May 09, 2018 at 05:12:56PM +0100, Dave Martin wrote:
> In struct vcpu_arch, the debug_flags field is used to store
> debug-related flags about the vcpu state.
> 
> Since we are about to add some more flags related to FPSIMD and
> SVE, it makes sense to add them to the existing flags field rather
> than adding new fields.  Since there is only one debug_flags flag
> defined so far, there is plenty of free space for expansion.
> 
> In preparation for adding more flags, this patch renames the
> debug_flags field to simply "flags", and updates comments
> appropriately.
> 
> The flag definitions are also moved to <asm/kvm_host.h>, since
> their presence in <asm/kvm_asm.h> was for purely historical
> reasons:  these definitions are not used from asm any more, and not
> very likely to be as more Hyp asm is migrated to C.
> 
> KVM_ARM64_DEBUG_DIRTY_SHIFT has not been used since commit
> 1ea66d27e7b0 ("arm64: KVM: Move away from the assembly version of
> the world switch"), so this patch gets rid of that too.
> 
> No functional change.
> 
> Signed-off-by: Dave Martin <Dave.Martin at arm.com>
> Reviewed-by: Marc Zyngier <marc.zyngier at arm.com>
> 
Acked-by: Christoffer Dall <christoffer.dall at arm.com>